Display screen or portion thereof with an animated graphical user interface



FIG. 1 illustrates a front view of a display screen or portion thereofwith an animated graphical user interface showing a first image of thesequence;

FIG. 2 illustrates a front view thereof showing a second image of thesequence;

FIG. 3 illustrates a front view thereof showing a third image of thesequence;

FIG. 4 illustrates a front view thereof showing a fourth image of thesequence;

FIG. 5 illustrates a front view thereof showing a fifth image of thesequence;

FIG. 6 illustrates a front view thereof showing a sixth image of thesequence; and,

FIG. 7 illustrates a front view thereof showing a seventh image of thesequence.

The broken line showing of the display screen or portion thereof and theremainder of the animated graphical user interface forms no part of theclaimed design.

The appearance of the transitional image sequentially transitionsbetween images shown in FIGS. 1 through 7. The process or period inwhich one image transitions to another image forms no part of theclaimed design.

CLAIM The ornamental design for a display screen or portion thereof withan animated graphical user interface, as shown and described.